Dry Diamond Drill Bit Set of 4 Packs 1/4''5/16''3/8''1/2''Diamond Hole-Saw with 5/8-11''Thread for Porcelain Ceramic Tile Marble Brick Vacuum Brazed Hole Saw Set

Material: Made of high-strength carbon steel with smooth nickel-plated surface for longer service life. Coated with high quality diamond to increase drilling speed and achieve sharp, high precision and smooth cuts in seconds without breaking edges.
Premium Quality:This set of diamond hole saw according coated hollow bits are filled with wax inside, which will cool the bit when dry drilling, and the glass hole saw has a diamond tip to ensure smooth punching, making the drilling process easier and the cuts precise with no rough edges.
Compatible with Angle Grinders, wet polishers:The 5/8-11 Thread enables easy installation on Angle Grinders, providing a secure and reliable fit. User Tips: When using the bits, hold the tool at a 45-degree angle to the surface and slowly bring them to an upright position while moving in a circular motion.If you fit them on hand drills, you need an adapter, such as SDS, hex, Round plus shank, etc.
Durable and Sturdy: Vacuum Brazed technology provides high efficient working performance, faster drilling speed and longer service life.Notice: if you want to fit our hole saws on drills or other machine, you need an adapter, such as SDS,Hex, Round Plus Shank.
Diamond Core Drill Bit included: This diamond hole saw kit drill bit set comes in 4 sizes: 1/4''5/16''3/8''1/2''.Meet most of your different needs.Diamond Drill Bits are suitable for most brittle and hard materials, such as ceramic tile,ceramics, marble, glass land so on.

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